Question: What school did Irena Szewinska attend at the end of 1970?
Paraphrase: Towards the end of 1970, where was Irena Szewinska a student?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q229424 p:P69 ?s . ?s ps:P69 ?obj . ?s pq:P582 ?x filter(contains(YEAR(?x),'1970')) }